Statistical comparison of the observed and synthetic hydrogen Lyman line profiles in solar prominences

Stanislav Gunár (1) , P. Schwartz (1) , Brigitte Schmieder (2, 3, 4) , Petr Heinzel (1) , U. Anzer (5)

1 Astronomical Institute, Academy of Sciences
2 Observatoire de Paris
3 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
4 Physique solaire
5 MPA - Max-Planck-Institut für Astrophysik

Aims: We analyse a unique set of prominence SOHO/SUMER Lyman spectra by comparing it with synthetic spectra obtained by 2D multi-thread prominence fine-structure models.
Methods: We employed a novel statistical approach to the analysis of the observed and synthetic Lyman spectra. We compared the statistical distributions of the line properties of the observed and synthetic Lyman spectra using a set of four statistical criteria.
Results: We demonstrate the very good agreement between the observed Lyman spectra and synthetic spectra obtained by modelling.
Conclusions: Our set of statistical criteria is well-suited to analyses of the prominence Lyman spectra because of its sensitivity to a number of different parameters governing the conditions in the prominence fine structures.

Domaines: Astrophysique [astro-ph]; Planète et Univers [physics]

Stanislav Gunár, P. Schwartz, Brigitte Schmieder, Petr Heinzel, U. Anzer. Statistical comparison of the observed and synthetic hydrogen Lyman line profiles in solar prominences. Astronomy and Astrophysics - A&A, 2010, 514, pp.43. ⟨10.1051/0004-6361/200913411⟩. ⟨hal-03785777⟩